Home / 14,543.40-21,786.30-8,682.60

Finding the Fourth Proportional to 14,543.40, 21,786.30 and 8,682.60

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Solution

The fourth proportional to 14,543.40, 21,786.30 and 8,682.60 is: 13,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.40 : 21,786.30 = 8,682.60 : x
  2. Step 2: Convert to fraction form
    14,543.40/21,786.30 = 8,682.60/x
  3. Step 3: Cross multiply
    14,543.40x = 21,786.30 × 8,682.60
  4. Step 4: Simplify right side
    14,543.40x = 189,161,728.38
  5. Step 5: Solve for x
    x = 189,161,728.38/14,543.40
  6. Step 6: Final answer
    x = 13,006.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.